18125960

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1723}}^1$

素因数の和:1997

約数の個数: 32

約数和(自身を含む): 40962240

約数和(自身を除く): 22836280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 1723, 2104, 2630, 3446, 5260, 6892, 8615, 10520, 13784, 17230, 34460, 68920, 453149, 906298, 1812596, 2265745, 3625192, 4531490, 9062980, 18125960]

約数ペア:

[(1, 18125960), (2, 9062980), (4, 4531490), (5, 3625192), (8, 2265745), (10, 1812596), (20, 906298), (40, 453149), (263, 68920), (526, 34460), (1052, 17230), (1315, 13784), (1723, 10520), (2104, 8615), (2630, 6892), (3446, 5260)]